Commit Graph

95 Commits

Author SHA1 Message Date
Simon Atanasyan 253fd15977 [Mips] Factor out some bit manipulation code into separate routines
No functional changes.

llvm-svn: 239226
2015-06-06 17:26:35 +00:00
Simon Atanasyan c859644f67 [Mips] Check symbol alignment for some MIPS relocations.
llvm-svn: 239225
2015-06-06 17:26:28 +00:00
Simon Atanasyan 439af8550e [Mips] Perform an overflow checking for relocations results
llvm-svn: 239224
2015-06-06 17:26:18 +00:00
Simon Atanasyan 26b1c4584d [Mips] Rearrange relocation related cases in the `switch` operator
No functional changes.

llvm-svn: 239223
2015-06-06 17:26:09 +00:00
Simon Atanasyan e801f43655 [Mips] Use signed/unsigned types in relocation calculations consistently
No functional changes.

llvm-svn: 239222
2015-06-06 17:26:04 +00:00
Simon Atanasyan 6d19105c1d [Mips] Handle all grouped relocations in a uniform way
No functional changes.

llvm-svn: 239221
2015-06-06 17:25:58 +00:00
Simon Atanasyan 8119228977 [Mips] Support R_MICROMIPS_PC18_S3/PC19_S2/PC21_S2/PC26_S2 relocations handling
llvm-svn: 235289
2015-04-20 07:34:52 +00:00
Simon Atanasyan 41ce98cc6f [Mips] Support R_MICROMIPS_GOT_DISP / PAGE / OFST relocations handling
llvm-svn: 235288
2015-04-20 07:33:02 +00:00
Simon Atanasyan fa21338a97 [Mips] Check `_gp_disp` symbol using a trivial string comparison
No functional changes.

llvm-svn: 235030
2015-04-15 18:31:44 +00:00
Rui Ueyama 921b8e93bb ELF: Remove redundant namespace qualifiers.
llvm-svn: 234938
2015-04-14 20:39:06 +00:00
Rui Ueyama 06f70a087b ELF: Split HeaderChunks.h to HeaderChunks.{h,cpp}.
llvm-svn: 234932
2015-04-14 19:48:57 +00:00
Rui Ueyama e75e50c045 Define make_dynamic_error_code(const char *).
The function took either StringRef or Twine. Since string literals are
ambiguous when resolving the overloading, many code calls used this
function with explicit type conversion. That led awkward code like
make_dynamic_error_code(Twine("Error occurred")).

This patch adds a function definition for string literals, so that
you can directly call the function with literals.

llvm-svn: 234841
2015-04-14 02:34:09 +00:00
Rui Ueyama ad87e54f1a ELF: Define ELF{32,64}{LE,BE} types and use them everywhere.
llvm-svn: 234823
2015-04-14 00:31:28 +00:00
Simon Atanasyan 4bc35460df [Mips] Move `MipsTargetLayout` class to the separate header
llvm-svn: 234727
2015-04-13 08:34:46 +00:00
Simon Atanasyan 88698b66c9 [Mips] Support R_MICROMIPS_GOT_HI/LO16 and R_MICROMIPS_CALL_HI/LO16 relocations
llvm-svn: 234726
2015-04-13 08:20:57 +00:00
Simon Atanasyan 62f261b014 [Mips] Support R_MIPS_CALL_HI16 / R_MIPS_CALL_LO16 relocations handling
llvm-svn: 234725
2015-04-13 08:20:48 +00:00
Simon Atanasyan 077372889b [Mips] Support R_MIPS_GOT_HI16 / R_MIPS_GOT_LO16 relocations handling
llvm-svn: 234724
2015-04-13 08:20:34 +00:00
Simon Atanasyan 54b1d56c01 [Mips] Support R_MIPS_EH relocation handling
The patch supports just the R_MIPS_EH relocation handling and does not
implement full specification of compact exception tables for MIPS ABIs.

llvm-svn: 234634
2015-04-10 21:00:29 +00:00
Simon Atanasyan ada248cd1c [Mips] Replace MipsTargetHandler member function getGP() by getGPAddr()
When we call getGP() we need in fact _gp symbol address. Let's cache its
value and return it directly from the new getGPAddr() function.

llvm-svn: 234632
2015-04-10 20:55:10 +00:00
Simon Atanasyan 2bafa8342c [Mips] Fix typo in the comment
llvm-svn: 234630
2015-04-10 20:54:58 +00:00
Simon Atanasyan cd9f268b50 [Mips] Remove redundant non-template MipsRelocationHandler class
llvm-svn: 234155
2015-04-06 13:26:04 +00:00
Simon Atanasyan 58a7fd48dc [Mips] Replace MipsRelocationHandler::readAddend() by a regular function
The readAddend() does not depend on MipsRelocationHandler and should not
be its member function.

llvm-svn: 234154
2015-04-06 13:25:58 +00:00
Rui Ueyama 1490b3512e ELF: Remove TargetHandler::getTargetLayout.
Only MIPS used that member function, and by removing the use of the
function, I removed a static_cast. Seems like it's a win.

llvm-svn: 233748
2015-03-31 20:31:48 +00:00
Simon Atanasyan f00d85a809 [Mips] Use llvm::make_unique
No functional changes.

llvm-svn: 233727
2015-03-31 19:00:54 +00:00
Simon Atanasyan f9db164355 [Mips] Fix writing R_MIPS_REL32 relocation addendum
If input relocation records have RELA format while output dynamic
relocations have REL format the only way to transfer a dynamic
relocation addendum is to save it into the location modified by
the dynamic relocation.

llvm-svn: 233532
2015-03-30 11:39:02 +00:00
Simon Atanasyan 623d3b0043 [Mips] Support MIPS N64 relocation record format
N64 ABI relocation record r_info field in fact consists of five subfields:
* r_sym   - symbol index
* r_ssym  - special symbol
* r_type3 - third relocation type
* r_type2 - second relocation type
* r_type  - first relocation type

Up to three these relocations applied one by one. The first relocation
uses an addendum from the relocation record. Each subsequent relocation
takes as its addend the result of the previous operation. Only the final
operation actually modifies the location relocated. The first relocation
uses as a reference symbol specified by the `r_sym` field. The third
relocation assumes NULL symbol.

The patch represents these data using LLD model and takes in account
additional relocation types during a relocation calculation.

Additional relocations do not introduce any new relations between two
atoms and just specify operations need to be done during a relocation
calculation. The first relocation type (`r_type`) stored in the
`Reference::_kindValue`. The rest of relocations and `r_ssym` value are
stored in the new `Reference::_tag` field "as-is". I decided to do not
"decode" these data on the core LLD level to prevent pollution of the
core LLD model by very target specific data.

Also I have to override writing of relocation records in the `RelocationTable`
class to convert MIPS N64 ABI relocation information from the `Reference`
class back to the ELF relocation record.

http://reviews.llvm.org/D8533

llvm-svn: 233057
2015-03-24 09:57:05 +00:00
Simon Atanasyan 283629a0f7 [Mips] Pass type of relocation and addendum to the `calculateRelocation`
separately

This change reduce difference between the trunk and upcoming patch and
simplify the future code review.

No functional changes.

llvm-svn: 232919
2015-03-22 16:35:08 +00:00
Simon Atanasyan c823c9523c [Mips] Add comments to the relocation calculation functions
No functional changes.

llvm-svn: 232761
2015-03-19 20:56:34 +00:00
Simon Atanasyan caadcc3f27 [Mips] Implement R_MIPS_PCHI16 / R_MIPS_PCLO16 relocations handling
llvm-svn: 232757
2015-03-19 19:59:17 +00:00
Simon Atanasyan 48e088f354 [Mips] Implement R_MIPS_PC18_S3 relocation handling
llvm-svn: 232756
2015-03-19 19:59:06 +00:00
Simon Atanasyan 5472ea1270 [Mips] Implement R_MIPS_PC19_S2 / R_MIPS_PC26_S2 relocations handling
llvm-svn: 232755
2015-03-19 19:58:58 +00:00
Simon Atanasyan 14afb83952 [Mips] Implement R_MIPS_PC21_S2 relocation handling
llvm-svn: 232707
2015-03-19 05:44:22 +00:00
Simon Atanasyan 8343c2c9ec [Mips] Replace "hand-made" function by the `llvm::SignExtend32()` routine
No functional changes.

llvm-svn: 232705
2015-03-19 05:44:04 +00:00
Simon Atanasyan 44e9b094e0 [Mips] Implement R_MIPS_TLS_xxx relocation handling in case of N64 ABI
llvm-svn: 232361
2015-03-16 09:14:28 +00:00
Simon Atanasyan 256407d9e2 [Mips] Implement R_MIPS_GOT_DISP/PAGE/OFST relocations handling
llvm-svn: 232360
2015-03-16 09:14:17 +00:00
Simon Atanasyan 08b19d67fa [Mips] Group some cases in the switch statement
No functional changes.

llvm-svn: 232359
2015-03-16 09:14:06 +00:00
Simon Atanasyan 9a0263aad7 [Mips] Make `readAddend` a virtual member function to escape explicit
template class instantiation

No functional changes.

llvm-svn: 232081
2015-03-12 18:53:06 +00:00
Simon Atanasyan b9a1443576 [Mips] Remove unused include
No functional changes.

llvm-svn: 231646
2015-03-09 10:54:11 +00:00
Simon Atanasyan 01396035a2 [Mips] Remove redundant namespace qualifiers
No functional changes.

llvm-svn: 231645
2015-03-09 10:54:05 +00:00
Simon Atanasyan 45354087b1 [Mips] Rename local variables
No functional changes.

llvm-svn: 231644
2015-03-09 10:53:58 +00:00
Simon Atanasyan d3388cc9b6 [Mips] Implement R_MIPS_SUB relocation handling
llvm-svn: 231643
2015-03-09 10:53:50 +00:00
Simon Atanasyan 1397f520d4 [Mips] Implement R_MIPS_64 relocation handling
llvm-svn: 231642
2015-03-09 10:53:41 +00:00
Simon Atanasyan cc0ed289b4 [Mips] Refactoring of relocation handling functions
1. Move relocation addendum reading code to the MipsRelocationHandler
class to reduce code duplication.
2. Factor out the relocations calculation code into the separate
function to be ready to handle MIPS N64 ABI relocation chains.

No functional changes.

llvm-svn: 231641
2015-03-09 10:53:32 +00:00
Simon Atanasyan e604e8f970 [Mips] Show error message and stop linking in case of cross mode jump errors
llvm-svn: 231640
2015-03-09 10:53:24 +00:00
Simon Atanasyan 9af798f5e4 [Mips] Fix incorrect handling of cross mode jumps
We should not take in account a type of "source" symbol. Cross mode jump
adjustment is requred when target symbol and relocation belong to
different (regular/microMIPS) instruction sets.

llvm-svn: 231639
2015-03-09 10:53:15 +00:00
Simon Atanasyan 3b95af6249 [Mips] Remove unused function argument
No functional changes.

llvm-svn: 227245
2015-01-27 21:11:16 +00:00
Simon Atanasyan 5a34d0343f [Mips] Support R_MIPS_GPREL16 relocation
llvm-svn: 227244
2015-01-27 21:11:11 +00:00
Denis Protivensky 9e4f87b329 [Mips] Fix createMipsRelocationHandler specialization (take 2)
Misread buildbot's log.
Both gcc and clang compile this fine.

Original fix reason:
gcc allows template specializations only in the same namespace
where template has been declared.

llvm-svn: 227183
2015-01-27 08:36:34 +00:00
Denis Protivensky 60f12026fb Revert "[Mips] Fix createMipsRelocationHandler specialization"
The buildbot reported build failures for clang.

llvm-svn: 227179
2015-01-27 08:22:07 +00:00
Denis Protivensky f6966505c3 [Mips] Fix createMipsRelocationHandler specialization
gcc allows template specializations only in the same namespace
where template has been declared.

llvm-svn: 227177
2015-01-27 07:56:25 +00:00